Pith Number

pith:IGZFJF2Y

pith:2020:IGZFJF2YH2M6QG5U3RGKBXRSZV

not attested not anchored not stored refs pending

A novel Region of Interest Extraction Layer for Instance Segmentation

Akbar Karimi, Andrea Prati, Leonardo Rossi

arxiv:2004.13665 v2 · 2020-04-28 · cs.CV

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{IGZFJF2YH2M6QG5U3RGKBXRSZV}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-07-05T04:33:17.532144Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

41b25497583e99e81bb4dc4ca0de32cd5d966dc1fa69d80099714d41f3c3f045

Aliases

arxiv: 2004.13665 · arxiv_version: 2004.13665v2 · doi: 10.48550/arxiv.2004.13665 · pith_short_12: IGZFJF2YH2M6 · pith_short_16: IGZFJF2YH2M6QG5U · pith_short_8: IGZFJF2Y

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/IGZFJF2YH2M6QG5U3RGKBXRSZV \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 41b25497583e99e81bb4dc4ca0de32cd5d966dc1fa69d80099714d41f3c3f045

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6048a23f23ef8614d389f4296255a15468e63b721c3b2df04e13147836378a4d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2020-04-28T17:07:32Z",
    "title_canon_sha256": "0aa64f592cfac53c8d95ea041aacf6d6c99c3d551ce36f421afc8fab98671b78"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2004.13665",
    "kind": "arxiv",
    "version": 2
  }
}